truther
n.— «Truthers, as they are called, hold a wide range of (often mutually exclusive) theories about what took place on September 11, 2001. They break down into two broad camps: those who believe that George W. Bush and Dick Cheney made 9/11 happen on purpose and those who believe that they let 9/11 happen on purpose. Truthers bristle at being called conspiracy theorists.» —“The Truthers Are Out There” by Sonny Bunch Yahoo! News Sept. 18, 2007. (source: Double-Tongued Dictionary)